AT THE CENTER OF THE EBOLA OUTBREAK IN ZAIRE, RELIEF WORKERS DISCOVER THE DANGER IS FAR FROM OVER

In the darkened doorway of an abandoned building, the medical team finds an empty coffin, waiting like carrion. One by one, neighbors explain, the family that lived there died. First the daughter, 18, went to the Kikwit 2 maternity hospital in late March for a caesarean section. When she got home her incision began to bleed. Then her organs began to melt. The red-black sludge wiggled out of her eyes, her nose, her mouth. Soon her parents got sick. Her father, some villagers believe, died of horror: he told his wife that if she died, he would die too on the...